you don't have to that's the beauty of free will, I feel sorry for you because everyone has their beliefs and judging them for that is not only direspectful it also keeps you from getting to know some really cool people, hopefully you at least know that not everybody wants to convert you most people just wanna be understood

If you actually thought about that, you might realise that you are just hating on every human out there. We all have beliefs we follow,which makes everyone a follower. Even if you dont believe in a god, then you would believe in nothing and there are just as many followers of that as there are of any other religion. Stop hating and get some respect.